Gas-well packer.



L. P'. BOOB & R. DAVIS.

GAS WELL PACKER.

'APPLIGATION FILED SEPT. 7, 1911.

Patented Sept. 10, 1912.

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J V y Jtt J5 V l I 4 r- Av4 6 J eti l Zazfifiwz? fidyfiafl lnventdrsWitnesses 1 I by W e W Attorneys LEX P. BOOE AND RAY DAVIS, CHANUTE,KANSAS.

GAS-WELL moxnn.

Specification of Letters Patent. t t d t, 10,191

Application filed September '7, 1911. Serial No. 648,205.

To all whom it may concern:

Be it known that we, LEX P. Boon and RAY DAVIS, citizens of the UnitedStates, residing at Chanute in the county of Neosho, State of Kansas,have invented a new and useful Gas-VVell Packer, of which the followingis a specification. I

This invention relates to packers for gas wells, and has for its objectto provide a suitable packer for the lower end of a pipe which is sunkinto the well for the purpose of shut-ting out water and other foreignmatter from the bottom of the well, the use of which is common practice.

A further object is to provide an improved construction of packer ofthis character in which the upper and lower portions are constrainedfrom rotating with respect to each other.

With the above and other objects in view, this invention is embodied inthe novel construction, arrangement and combination of the parts of apacker.

The invention is illustrated in the accompanying drawings, in whichsimilar reference characters indicate similar parts, and in which:

Figure 1 is a longitudinal central section taken through the packer,parts shown in full. Fig. 2 is a section on the line 2,-2 of Fig. 1.Fig. 3 is a section on the line 3-3 of Fig. 1. Fig. 4 is a section onthe line 4-4 of Fig. 1. Fig. 5 is a section on the line 55 of Fig. 1.

Referring specifically to the drawings, 6 designates the pipe above thepacker, which is of usual diameter, somewhat less than the diameter ofthe well. To the lower end of the tube 6 is secured the packer whichwill be described directly.

The packer comprises a lower bowlshaped section 12 having the upper endthereof open and internally screw-threaded. An integral nipple 13projects or depends from the lower end of the section 12 and the duct 14thereof communicates with the lower end of the recess or basin withinthe said section. The upper end of the nipple 13 is increased indiameter to blend or merge into the lower end of the said section,whereby the packer can be conveniently sunk into the well. A head 10having a lower nipple 16 is secured on the upper end of the section 12,the nipple 16 being provided with external screw-threads engaging withthe internal screw-threads in the upper end of the said section. Thehead lO has a non-circular opening therethrough, being shown asoctangular, and in the upper end thereof is provided a socket 17 Asleeve 8 of rubber or other elastic material is arranged above the head10 and is provided with a reduced portion or nipple 18 on the lower endthereof which enters the socket 17 of the head 10, forming a male andfemale joint.

Above the sleeve 8 is arranged. an upper head 7 having a bore or passagetherethrough and having the lower socket 20 into which an upper reducedportion or nipple 19 of the sleeve 8 engages to form a male and femalejoint between the head 7 and the sleeve 8. The bore of the head 7indicated at 22 is provided at its upper and lower ends withscrew-threads, the lower end of the tube 6 being screw-threaded andengaging the upper end of the said head. A tubular member 9 having thebody thereof of non-circular contour, shown as being 00- tangular inform, has the upper end thereof externally screw-threaded and engagingin the lower end of the bore 22 of the head 7 the body thereof passingsnugly through the passage in the head 10. The tubular member 9 beingnoncircular in contour and fitting snugly within the passage through thehead 10 which is non-circular, prevents the rotation of the said memberwithin the said head or vice versa. A collar 11 is screw-threaded ontothe lower end of the tubular member 9 and is spaced above the bottom 21of the basin or recess within the section 12. The head 7 sleeve 8, head10, and the section 12 are all circular in contour and flush at thejoints thereof.

As shown in the drawings, the ends of the tubular member 9 are reducedalike and are circular, said ends being provided with externalscrew-threads, which provides for a certain novel feature. Thereciprocation of the tubular member 9 through the head 10 will cause thetubular member to be worn, particularly at the corners, in which event,the tubular member may be detached and reversed to bring the unworn orupper portion thereof within the head 10, thus renewing the life of thepacker. A tight fit between the tubular member 9 and the head 10 is essential in order to prevent the egress or ingress of matter through thepacker.

In use, the packer, after being assembled, is screwed on the lower endof the pipe which is to be sunk into the well and the pipe is thenlowered into the well in the customary manner, a short section of pipebeing secured below the packer (not shown). When the lower section ofthe pipe strikes the bottom of the well the weight of the upper pipe 6rests on the sleeve 8 which in having its ends compressed bulges underthe load of the upper pipe, or causes the sides thereof to be distended, to engage the sides of the well. This closes the passage betwenthe pipe and the Walls of the well whereby the water and other matterabove the said packing are prevented from falling into the bottom of thewell which contains the gas sand. It will be noted that the lowersection of pipe may have a screw-threaded engagement with the nipple 13for connecting the lower section of pipe and packer together. This lowersection of pipe has openings therein intermediateits ends, or is cagedintermediate its ends to permit the gas to enter the said section ofpipe and pass packer into the upper portions of the pipe to be exhaustedfrom the well in the usual manner. The tubular member 9 being of qnon-circular contour and slidably fitting within the non-circularpassage through the head 10 prevents the head 7 from revolving withrespect to the head 10 and the section 12 thus holding the various partsof the packer in non-rotatable position with respect to each other. Theupper portions of pipe are usually connected by a coupling having rightand left-handed screw threads,

up through the and when it is desired to remove the upper portions ofthe pi )es from the well, it being understood that the packer inremaining in the well for a period of time becomes firmly embeddedtherein and is practically impossible to remove, the said pipeis rotatedto unscrew from the nipple abo ve the packer and can then be removed,leaving the packer in the well. The packer and the section of pipe belowsame may be fished from the well after the upper portions of the pipehave been removed.

WVhat is claimed is:

A well packer comprisin a lower hollow section, a head in screw-t readedengagement with the upper end thereof and having an octangular openingtherethrough, an upper head having a bore therethrough, a tubularoctangular member fitting slidably through the opening in the formerhead and having its ends reduced alike and circular and provided withexternal screw-threads, a collar engaged on the lower end of the tubularmember the upper end of tlie tubular member engaging in the bore 011 thelatter head and an elastic sleeve on tlpe tubular member between thesaid heads.

In testimony that we claim the foregoing as our own, we have heretoaflixed our signatures in the presence of two witnesses.

LEX P. BOOE. RAY DAVIS.

Witnesses:

R. B. UsHER, HARRY VVALLAGE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

